Quick-Charging Control Circuit for Adaptive Adapter Output
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Solution Overview
Problem
Existing charging technologies for electronic devices with large capacity batteries face long charging times due to constant-voltage output modes, preventing quick-charging capabilities.
Innovation Solution
A charging control apparatus and method that includes a power adapter and a charging control circuit, allowing for dynamic adjustment of output voltage and current based on battery voltage feedback for quick-charging, using a communication interface to enable real-time adjustments and meet pre-set quick-charging conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If constant-voltage output mode is used for charging, then charging stability is maintained, but charging time becomes excessively long for large capacity batteries
Solution Approach 1:
The power adapter dynamically adjusts output current and voltage based on real-time battery voltage feedback received through the communication interface. The charging control circuit monitors battery voltage and sends instructions to the power adapter to switch between constant-voltage mode and quick-charging mode, making the charging system adaptive rather than static.
Solution Approach 2:
The system changes charging parameters (output current and voltage) based on battery state. When quick-charging conditions are met, the power adapter increases output current while adjusting voltage according to battery voltage feedback, thereby reducing charging time while maintaining safety through continuous parameter monitoring and adjustment.
2Loss of time
If output current and voltage are adjusted for quick-charging, then charging time is reduced, but charging safety and control complexity increase
Solution Approach 1:
The charging control circuit continuously monitors battery voltage and provides feedback to the power adapter through the communication interface. This feedback mechanism enables the system to adjust output parameters in real-time, ensuring charging safety while achieving quick-charging performance without requiring overly complex external control systems.
Solution Approach 2:
The communication interface serves multiple functions: it transmits battery voltage information from the charging control circuit to the power adapter, conveys quick-charging instructions, and enables real-time parameter adjustment. This multi-functional approach reduces the need for separate dedicated control components, thereby managing system complexity.
3Manufacturing precision
If real-time voltage monitoring and communication are implemented, then quick-charging control precision is improved, but system complexity and communication requirements increase
Solution Approach 1:
The communication interface integrates multiple functions including voltage monitoring, data transmission, and control signaling. By combining these functions into a single communication channel between the charging control circuit and power adapter, the system achieves precise real-time control without proportionally increasing overall system complexity.
Data Source
AI summary
A charging control apparatus and method for an electronic device are provided. During a process of charging, the power adapter first charges the battery with a constant-voltage direct current output, and then after the power adapter receives a quick-charging instruction, the power adapter adjusts an output voltage according to the voltage of the battery fed back by the charging control circuit, and if the output voltage meets a quick-charging voltage condition pre-set by the charging control circuit, the power adapter adjusts an output current and the output voltage respectively according to a preset quick-charging current value and a preset quick-charging voltage value for quick-charging the battery, and meanwhile the charging control circuit introduces direct current from the power adapter for charging the battery; during a process of quick-charging, the power adapter adjusts the output current in real time according to the output voltage thereof and the voltage of the battery.